6.5 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
49.5%
The DNS-over-TCP implementation in Cisco IOS 12.2 and 15.0 through 15.3, when NAT is used, allows remote attackers to cause a denial of service (device reload) via a crafted IPv4 DNS TCP stream, aka Bug ID CSCuf28733.
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130925-nat